Re: registered function call [1160]:...live/2023/texmf-dist/tex/context/base/mkiv/l-sandbox.lua:87: cannot open /.: Permission denied - Alpine Linux

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

On 3/31/2023 10:08 PM, Carlos via ntg-context wrote:

>> sure, why should it, you want lucida so better quit with an error than
>> kicking in some font; actually cmr math fonts have been obsoleted for way
>> over a decade by latin modern math fonts in 32 bit font engines

Font loading and processing time can be mosty neglected so these 16 
seconds come from something else, maybe there are ways to trace file 
access. Another possibility is that your fonts are not cached in which 
case every run will involve parsing the otf / ttf and producing whatever 
resources needed (normally cached).

> I was actually thinking to ask you about that, and by falling back to cmr math font that perhaps would expedite loading time along the way.

These fonts are small (only huge cjk fonts with tens of thousands of 
glyphs or fonts with hundreds of accumulated features might have some 
impact but even then not in the final embedding stage).

Whan talking fonts, enabling for instance expansion (hz) and protusion 
might increase runtime a little. In practice, enabling for instance 
synctex has a bigger imnpacts on performance than handling fonts.
  Hans

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